ZnO quantum Hall states revealed by mesoscopic conduction

• Project/Area Number: 15H05425
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: Uchida Masaki 東京大学, 大学院工学系研究科(工学部), 助教 (50721726)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000); Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2015: ¥22,230,000 (Direct Cost: ¥17,100,000、Indirect Cost: ¥5,130,000)
• Keywords: 表面・界面 / 量子伝導 / 量子ホール効果 / 二次元電子ガス / 高移動度 / 酸化亜鉛 / 酸化物薄膜 / 表面・界面物性 / トポロジカル相

Outline of Final Research Achievements

We have improved molecular beam epitaxy growth of zinc-oxide two-dimensional electron gas for further enhancement of its mobility, and performed ultralow-temperature quantum transport measurements adopting mesoscopic conduction methods. Results of oscillation period change observed in various anti-dot structures suggest formation of the spin-polarized composite particles in the even-denominator fractional quantum Hall state.

Research Products

• [Journal Article] Alloy disorder modulated electron transport at MgxZn1-xO/ZnO heterointerface (2017)
  • Author(s): Aswin Vishnuradhan, Y. Kozuka, M. Uchida, J. Falson, A. Tsukazaki, M. Kawasaki
  • Journal Title: AIP Advances Volume: 7 Issue: 1 Pages: 015029-015029
  • DOI: 10.1063/1.4974462
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Topological Oxide Electronics (2016)
  • Author(s): M. Uchida, M. Kawasaki
  • Journal Title: J. Phys. D-Appl. Phys. Volume: 49 Issue: 43 Pages: 433001-433001
  • DOI: 10.1088/0022-3727/49/43/433001
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evolution of electronic correlations across the rutile, perovskite, and Ruddelsden-Popper iridates with octahedral connectivity (2016)
  • Author(s): J. K. Kawasaki, M. Uchida, H. Paik, D. G. Schlom, and K. M. Shen
  • Journal Title: Physical Review B Volume: 94 Issue: 12
  • DOI: 10.1103/physrevb.94.121104
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Evolution of Insulator-Metal Phase Transitions in Epitaxial Tungsten Oxide Films during Electrolyte-Gating (2016)
  • Author(s): S. Nishihaya, M. Uchida, Y. Kozuka, Y.Iwasa, M. Kawasaki
  • Journal Title: ACS Appl. Mater. Volume: 8 Issue: 34 Pages: 22330-22336
  • DOI: 10.1021/acsami.6b06593
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] MgZnO/ZnO heterostructures with electron mobility exceeding 1 × 106 cm2/Vs (2016)
  • Author(s): J. Falson, Y. Kozuka, M. Uchida, J. H. Smet, T. Arima, A. Tsukazaki, M. Kawasaki
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 26598-26598
  • DOI: 10.1038/srep26598
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Strain Control of Fermiology and Many-Body Interactions in Two-Dimensional Ruthenates (2016)
  • Author(s): B. Burganov, C. Adamo, A. Mulder, M. Uchida, P. D. C. King, J. W. Harter, D. E. Shai, A. S. Gibbs, A. P. Mackenzie, R. Uecker, M. Bruetzam, M. R. Beasley, C. J. Fennie, D. G. Schlom, and K. M. Shen
  • Journal Title: Physical Review Letters Volume: 116 Issue: 19
  • DOI: 10.1103/physrevlett.116.197003
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Epitaxially Stabilized Oxide Composed of Twisted Triangular-Lattice Layers (2016)
  • Author(s): M. Uchida, K. Ohba, Y. Ohuchi, Y. Kozuka, M. Kawasaki
  • Journal Title: Chemistry of Materials Volume: 28 Issue: 4 Pages: 1166-1166
  • DOI: 10.1021/acs.chemmater.5b04702
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effective carrier doping and metallization in La xSr 2-x-yBa yIrO 4-δ thin films (2016)
  • Author(s): M. Ito, M. Uchida, Y. Kozuka, K. S. Takahashi, M. Kawasaki
  • Journal Title: Physical Review B Volume: 93 Issue: 4 Pages: 045139-045139
  • DOI: 10.1103/physrevb.93.045139
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Quantum Hall states observed in thin films of Dirac semimetal Cd3As2 (2017)
  • Author(s): M. Uchida
  • Organizer: International Conference on Topological Materials Science 2017
  • Place of Presentation: 東京工業大学(東京都目黒区)
  • Year and Date: 2017-05-09
  • Int'l Joint Research / Invited
• [Presentation] Metallic domain wall at antiferromagnetic pyrochlore iridate heterointerface (2017)
  • Author(s): M. Uchida
  • Organizer: 2017 MRS Spring Meeting
  • Place of Presentation: フェニックス(アメリカ)
  • Year and Date: 2017-04-17
  • Int'l Joint Research / Invited
• [Presentation] Cd3As2薄膜における膜厚に依存した電子構造と量子輸送特性 (2017)
  • Author(s): 中澤佑介, 打田正輝, 西早辰一, 秋葉和人, M. Kriener, 小塚裕介, 三宅厚志, 田口康二郎, 徳永将史, 永長直人, 十倉好紀, 川﨑雅司
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学(大阪府豊中市)
  • Year and Date: 2017-03-17
• [Presentation] Cd3As2薄膜における量子ホール効果の観測 (2017)
  • Author(s): 打田正輝, 中澤佑介, 西早辰一, 秋葉和人, M. Kriener, 小塚裕介, 三宅厚志, 田口康二郎, 徳永将史, 永長直人, 十倉好紀, 川﨑雅司
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学(大阪府豊中市)
  • Year and Date: 2017-03-17
• [Presentation] 強誘電体PbTiO3をチャネルとした電気二重層トランジスタの作製 (2017)
  • Author(s): 西野隆太郎, 打田正輝, 小塚裕介, 岩佐義宏, 川﨑雅司
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜(神奈川県横浜市)
  • Year and Date: 2017-03-14
• [Presentation] Alloy Disorder Modulated Electron Transport at MgxZn1-xO/ZnO Heterointerface (2017)
  • Author(s): A. Vishnu Radhan, 小塚裕介, 打田正輝, J. Falson, 塚﨑敦, 川﨑雅司
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜(神奈川県横浜市)
  • Year and Date: 2017-03-14
• [Presentation] Electronic phase diagram of electron-doped cuprate La2-xCexCuO4 explored by electrolyte gating (2017)
  • Author(s): H. Matsuoka, M. Nakano, M. Uchida, M. Kawasaki, and Y. Iwasa
  • Organizer: 2017 American Physical Society March Meeting
  • Place of Presentation: ニューオーリンズ(アメリカ)
  • Year and Date: 2017-03-13
  • Int'l Joint Research
• [Presentation] Evolution of the Electronic Structure of n-Type BaSnO3 Films With Chemical Doping and Photodoping (2017)
  • Author(s): E. Lochocki, H. Paik, M. Uchida, D. Schlom, and K. Shen
  • Organizer: 2017 American Physical Society March Meeting
  • Place of Presentation: ニューオーリンズ(アメリカ)
  • Year and Date: 2017-03-13
  • Int'l Joint Research
• [Presentation] Ambipolar quantum transport in Cd3As2 field effect transistors (2017)
  • Author(s): S. Nishihaya, M. Uchida, Y. Nakazawa, M. Kriener, Y. Kozuka, Y. Taguchi, and M. Kawasaki
  • Organizer: 2017 American Physical Society March Meeting
  • Place of Presentation: ニューオーリンズ(アメリカ)
  • Year and Date: 2017-03-13
  • Int'l Joint Research
• [Presentation] Quantum Hall effect in Cd3As2 films (2017)
  • Author(s): M. Uchida, Y. Nakazawa, S. Nishihaya, K. Akiba, M. Kriener, Y. Kozuka, A. Miyake, Y. Taguchi, M. Tokunaga, N. Nagaosa, Y. Tokura, and M. Kawasaki
  • Organizer: 2017 American Physical Society March Meeting
  • Place of Presentation: ニューオーリンズ(アメリカ)
  • Year and Date: 2017-03-13
  • Int'l Joint Research
• [Presentation] Metallic Domain Wall at All-in-all-out Pyrochlore Iridate Heterointerface (2016)
  • Author(s): T. C. Fujita, M. Uchida, Y. Kozuka, W. Sano, A. Tsukazaki, T. Arima, and M. Kawasaki
  • Organizer: 23rd International Workshop on Oxide Electronics
  • Place of Presentation: 南京(中国)
  • Year and Date: 2016-10-12
  • Int'l Joint Research
• [Presentation] Electric Field Control of Anomalous and Topological Hall Effects in SrIrO3/SrRuO3 Heterostructures (2016)
  • Author(s): Y. Ohuchi, J. Matsuno, Y. Kozuka, M. Uchida, Y. Tokura, M. Kawasaki
  • Organizer: 23rd International Workshop on Oxide Electronics
  • Place of Presentation: 南京(中国)
  • Year and Date: 2016-10-12
  • Int'l Joint Research
• [Presentation] SrIrO3/SrRuO3ヘテロ構造における異常ホール効果・トポロジカルホール効果の電場変調 (2016)
  • Author(s): 大内祐貴, 松野丈夫, 小川直毅, 小塚裕介, 打田正輝, 十倉好紀, 川﨑雅司
  • Organizer: 第77回応用物理学会秋季学術講演会
  • Place of Presentation: 朱鷺メッセ(新潟県新潟市)
  • Year and Date: 2016-09-13
• [Presentation] 電解質ゲートによるn型銅酸化物高温超伝導体La2-xCexCuO4の超伝導絶縁体転移制御と電子相図の構築 (2016)
  • Author(s): 松岡秀樹, 中野匡規, 打田正輝, 川﨑雅司, 岩佐義宏
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学(石川県金沢市)
  • Year and Date: 2016-09-13
• [Presentation] MgxZn1-xO/ZnOヘテロ構造を用いた二次元電子系/超伝導接合 (2016)
  • Author(s): 小塚裕介, 阪口敦史, Aswin Vishn Radhan, Joseph Falson, Denis Maryenko, 打田正輝, 塚﨑敦, 川﨑雅司
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学(石川県金沢市)
  • Year and Date: 2016-09-13
• [Presentation] ツイストした三角格子層からなる新層状酸化物薄膜の作製 (2016)
  • Author(s): 大羽健太, 打田正輝, 大内祐貴, 小塚裕介, 川﨑雅司
  • Organizer: 第63回応用物理学会春季学術講演会(20pH111-4)
  • Place of Presentation: 東京工業大学(東京都目黒区)
  • Year and Date: 2016-03-20
• [Presentation] Epitaxially stabilized oxide film composed of twisted triangular-lattice layers (2015)
  • Author(s): M. Uchida
  • Organizer: Collaborative Conference on Crystal Growth 2015
  • Place of Presentation: 香港(中国)
  • Year and Date: 2015-12-16
  • Int'l Joint Research / Invited